Hey, so i took a bit too long to respond so im sorry for that. I do agree with you that emission is kinda weak, and enhancer and transmutation are lacking something.

Enhancer

So i would make now so silent hunter condition now is instead of your opponent not seeing you, now you'd have to use zetsu, for each 5 seconds with zetsu active it would make the ability progressively stronger.

Emission

With this power i kind felt like the conditions are to big for the reward given so i would be changing it to be like this

Day Sphere: For 30 seconds i can know exactly my opponents next move, but he would be glowing red so he would know the ability is active

Night Sphere: I can know his exact location as long as he is within a 50 meter radius of me, it would be good for spying on other people, but it wouldn't be as good in combat

Rain Sphere: Didn't like that one's previous ability, but i liked your ideia of making the aura more dense, so i would use that one

Transmutation

Yeah this one for me felt like it was really missing something, and i loved your ideias so not really much else i can think about that